Section V — Mineral products
HS code
27139000
Other residues of petroleum oils , etc
Common commodities
Heavy refinery oil sludgeTank bottom oil residueUnspecified petroleum processing by-productRefinery waste oil sludgesOily refinery solid wasteMiscellaneous refinery heavy oilsPetroleum processing tank residuesRefinery sludge oilsHeavy oil distillation residueOil refinery bottom products